All Socialist Theories and Utopias Have Always Had Only the STATIONARY CONDITION in Mind

To assume stationary economic conditions is a theoretical expedient and not an attempt to describe reality. We cannot dispense with this line of thought if we wish to understand the laws of economic change. In order to study movement we must first imagine a condition where it does not exist. The stationary condition is that point of equilibrium to which we conceive all forms of economic activity to be tending and which would actually be attained if new factors did not, in the meantime, create a new point of equilibrium. In the imaginary state of equilibrium all the units of the factors of production are employed in the most economic way, and there is no reason to contemplate any changes in their number or their disposition.

Even if it is impossible to imagine a living — that is to say a changing — socialist economic order, because economic activity without economic calculation seems inconceivable, it is quite easy to postulate a socialist economic order under stationary conditions. We need only avoid asking how this stationary condition is achieved. If we do this there is no difficulty in examining the statics of a socialist community. All socialist theories and Utopias have always had only the stationary condition in mind.

—Ludwig von Mises, Socialism: An Economic and Sociological Analysis, trans. J. Kahane (Indianapolis: Liberty Fund, 1981), 142.